{"id":62435,"date":"2024-10-13T18:57:20","date_gmt":"2024-10-13T10:57:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62435\/"},"modified":"2024-10-13T18:57:20","modified_gmt":"2024-10-13T10:57:20","slug":"java%e4%bb%a3%e7%a2%bc%e9%80%a3%e6%8e%a5mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e6%88%90%e5%8a%9f%ef%bc%8c%e4%bd%86%e6%9f%a5%e8%a9%a2%e4%b8%8d%e9%a1%af%e7%a4%ba%e8%a1%a8%ef%bc%8c%e5%a6%82%e4%bd%95%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62435\/","title":{"rendered":"Java\u4ee3\u78bc\u9023\u63a5MySQL\u6578\u64da\u5eab\u6210\u529f\uff0c\u4f46\u67e5\u8a62\u4e0d\u986f\u793a\u8868\uff0c\u5982\u4f55\u89e3\u6c7a\uff1f (java\u9023\u63a5\u6578\u64da\u5eab\u4e0d\u986f\u793a\u8868)"},"content":{"rendered":"

Java\u4ee3\u78bc\u9023\u63a5MySQL\u6578\u64da\u5eab\u6210\u529f\uff0c\u4f46\u67e5\u8a62\u4e0d\u986f\u793a\u8868\uff0c\u5982\u4f55\u89e3\u6c7a\uff1f<\/h1>\n

\u5728\u958b\u767cJava\u61c9\u7528\u7a0b\u5e8f\u6642\uff0c\u9023\u63a5MySQL\u6578\u64da\u5eab\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7136\u800c\uff0c\u6709\u6642\u5019\u5373\u4f7f\u9023\u63a5\u6210\u529f\uff0c\u67e5\u8a62\u537b\u4e0d\u986f\u793a\u4efb\u4f55\u8868\u3002\u9019\u7a2e\u60c5\u6cc1\u53ef\u80fd\u6703\u8b93\u958b\u767c\u8005\u611f\u5230\u56f0\u60d1\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u53ef\u80fd\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3Java\u8207MySQL\u7684\u4ea4\u4e92\u3002<\/p>\n

1. \u78ba\u8a8d\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n

\u9996\u5148\uff0c\u78ba\u4fdd\u60a8\u7684Java\u4ee3\u78bc\u80fd\u5920\u6210\u529f\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u9023\u63a5\u793a\u4f8b\uff1a<\/p>\n

import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.SQLException;\n\npublic class DatabaseConnection {\n    public static void main(String[] args) {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n        String user = \"your_username\";\n        String password = \"your_password\";\n\n        try {\n            Connection connection = DriverManager.getConnection(url, user, password);\n            System.out.println(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff01\");\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
\u5982\u679c\u60a8\u80fd\u770b\u5230\u201c\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff01\u201d\u7684\u6d88\u606f\uff0c\u5247\u8868\u793a\u9023\u63a5\u6b63\u5e38\u3002\u5426\u5247\uff0c\u8acb\u6aa2\u67e5\u60a8\u7684\u6578\u64da\u5eabURL\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u662f\u5426\u6b63\u78ba\u3002<\/p>\n
2. \u6aa2\u67e5\u6578\u64da\u5eab\u548c\u8868\u7684\u5b58\u5728\u6027<\/h2>\n
\u5982\u679c\u9023\u63a5\u6210\u529f\uff0c\u4f46\u67e5\u8a62\u4e0d\u986f\u793a\u4efb\u4f55\u8868\uff0c\u8acb\u6aa2\u67e5\u6578\u64da\u5eab\u4e2d\u662f\u5426\u5b58\u5728\u60a8\u8981\u67e5\u8a62\u7684\u8868\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u5217\u51fa\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\uff1a<\/p>\n
SHOW TABLES;\n<\/code><\/pre>\n
\u5982\u679c\u6c92\u6709\u986f\u793a\u4efb\u4f55\u8868\uff0c\u5247\u53ef\u80fd\u662f\u56e0\u70ba\u60a8\u9023\u63a5\u5230\u4e86\u932f\u8aa4\u7684\u6578\u64da\u5eab\u3002\u8acb\u78ba\u4fdd\u5728\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u4e86\u6b63\u78ba\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002<\/p>\n
3. \u6aa2\u67e5\u67e5\u8a62\u8a9e\u53e5<\/h2>\n
\u5982\u679c\u60a8\u78ba\u5b9a\u6578\u64da\u5eab\u548c\u8868\u90fd\u5b58\u5728\uff0c\u4f46\u67e5\u8a62\u4ecd\u7136\u4e0d\u986f\u793a\u7d50\u679c\uff0c\u8acb\u6aa2\u67e5\u60a8\u7684\u67e5\u8a62\u8a9e\u53e5\u662f\u5426\u6b63\u78ba\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n
import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.SQLException;\nimport java.sql.Statement;\n\npublic class QueryExample {\n    public static void main(String[] args) {\n        String url = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n        String user = \"your_username\";\n        String password = \"your_password\";\n\n        try {\n            Connection connection = DriverManager.getConnection(url, user, password);\n            Statement statement = connection.createStatement();\n            String query = \"SELECT * FROM your_table\";\n            ResultSet resultSet = statement.executeQuery(query);\n\n            while (resultSet.next()) {\n                System.out.println(\"\u5217\u503c: \" + resultSet.getString(\"column_name\"));\n            }\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
\u78ba\u4fdd\u67e5\u8a62\u4e2d\u7684\u8868\u540d\u548c\u5217\u540d\u6b63\u78ba\u7121\u8aa4\u3002\u5982\u679c\u8868\u540d\u6216\u5217\u540d\u62fc\u5beb\u932f\u8aa4\uff0c\u5c07\u5c0e\u81f4\u67e5\u8a62\u7121\u6cd5\u8fd4\u56de\u4efb\u4f55\u7d50\u679c\u3002<\/p>\n
4. \u6aa2\u67e5\u6b0a\u9650\u554f\u984c<\/h2>\n
\u6709\u6642\u5019\uff0c\u5373\u4f7f\u9023\u63a5\u6210\u529f\uff0c\u67e5\u8a62\u4e5f\u53ef\u80fd\u56e0\u70ba\u6b0a\u9650\u554f\u984c\u800c\u7121\u6cd5\u986f\u793a\u8868\u3002\u8acb\u78ba\u4fdd\u60a8\u7684\u7528\u6236\u64c1\u6709\u5c0d\u8a72\u6578\u64da\u5eab\u548c\u8868\u7684\u9069\u7576\u8a2a\u554f\u6b0a\u9650\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u6aa2\u67e5\u7528\u6236\u6b0a\u9650\uff1a<\/p>\n
SHOW GRANTS FOR 'your_username'@'localhost';\n<\/code><\/pre>\n
\u5982\u679c\u767c\u73fe\u6b0a\u9650\u4e0d\u8db3\uff0c\u8acb\u806f\u7e6b\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4ee5\u7372\u53d6\u9069\u7576\u7684\u6b0a\u9650\u3002<\/p>\n
5. \u6aa2\u67e5\u9a45\u52d5\u7a0b\u5e8f\u548c\u7248\u672c<\/h2>\n
\u6700\u5f8c\uff0c\u8acb\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684MySQL\u9a45\u52d5\u7a0b\u5e8f\u7248\u672c\u8207\u60a8\u7684MySQL\u6578\u64da\u5eab\u7248\u672c\u76f8\u5bb9\u3002\u4f7f\u7528\u4e0d\u76f8\u5bb9\u7684\u9a45\u52d5\u7a0b\u5e8f\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u60f3\u4e0d\u5230\u7684\u884c\u70ba\u3002\u60a8\u53ef\u4ee5\u5f9eMySQL\u5b98\u65b9\u7db2\u7ad9\u4e0b\u8f09\u6700\u65b0\u7684\u9a45\u52d5\u7a0b\u5e8f\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728Java\u4e2d\u9023\u63a5MySQL\u6578\u64da\u5eab\u6642\uff0c\u5982\u679c\u67e5\u8a62\u4e0d\u986f\u793a\u8868\uff0c\u53ef\u80fd\u662f\u7531\u65bc\u6578\u64da\u5eab\u9023\u63a5\u554f\u984c\u3001\u8868\u4e0d\u5b58\u5728\u3001\u67e5\u8a62\u8a9e\u53e5\u932f\u8aa4\u3001\u6b0a\u9650\u4e0d\u8db3\u6216\u9a45\u52d5\u7a0b\u5e8f\u4e0d\u76f8\u5bb9\u7b49\u539f\u56e0\u3002\u901a\u904e\u9010\u6b65\u6aa2\u67e5\u9019\u4e9b\u56e0\u7d20\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u627e\u5230\u4e26\u89e3\u6c7a\u554f\u984c\u3002<\/p>\n
\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u74b0\u5883\u4f86\u904b\u884c\u60a8\u7684Java\u61c9\u7528\u7a0b\u5e8f\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u6216\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\uff0c\u4ee5\u78ba\u4fdd\u9ad8\u6548\u7684\u6027\u80fd\u548c\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u89e3\u6c7aJava\u9023\u63a5MySQL\u6578\u64da\u5eab\u6210\u529f\u4f46\u67e5\u8a62\u4e0d\u986f\u793a\u8868\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u6392\u67e5\u6b65\u9a5f\u548c\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-62435","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=62435"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62435\/revisions"}],"predecessor-version":[{"id":62436,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62435\/revisions\/62436"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}